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Full cluster downtime on Wednesday, Dec 19 starting at 6am; make sure to log out and halt any running processes before downtime starts

Dec. 10, 2018—We are taking a full cluster downtime on Wednesday, Dec 19 beginning at 6AM. We expect the work to be completed by the afternoon of Dec 19. The primary purpose of this downtime is to install new storage hardware to allow us to subsequently expand capacity on /scratch and /data (additional space will not be available...

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Introducing the ACCRE Visualization Portal

Nov. 29, 2018—The ACCRE Visualization Portal is a new graphical interface to the ACCRE cluster powered by Open OnDemand. This interface allows users to access all cluster resources conveniently through modern web browsers, and provides the ability to create virtual desktop jobs that create a temporary desktop environment within the cluster on a compute node for interactive...

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GPU Nodes Available for Testing in CentOS 7 Environment

Nov. 29, 2018—GPU nodes are now available for testing in the CentOS 7 environment. We have 5 nodes available in the pascal partition and 2 nodes available in the maxwell partition, so for now, please limit your jobs to short tests to verify that your application functions correctly. Please continue running your production jobs in the CentOS...

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Welcome SC18 Attendees!

Nov. 9, 2018—We would like to welcome our fellow attendees of Supercomputing 2018 in Dallas, TX to our site. This page contains our presentation schedule as well as all our posters, presentation slides, relevant links, source code, and presenter bios. We will be in booth 3907 all week.

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[Resolved] Problems with GPFS; logins and jobs may be affected

Nov. 7, 2018—Update, 3pm: /home is back online. Please check your jobs’ output very carefully as it is likely that many will need to be re-run, especially if they were performing I/O to or from /home. Jobs performing I/O to /scratch, /data, or /dors may have survived. Please open a helpdesk ticket with us if you have...

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11/30/2018: Basics of Python Performance and Multithreading with Eric Appelt

Oct. 31, 2018—Audio for Eric Appelt’s talk:   Our next Pizza and Programming Seminar will be held on Friday, Nov 30 beginning at 1:15pm in Stevenson Center 5326. Eric Appelt, Sr Sys Admin at ACCRE, will be leading an interactive seminar on the inner workings of Python. An abstract is included below. You can register for the...

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[Resolved] Cluster unresponsive or sluggish for some users

Oct. 18, 2018—Update, 2:30pm: All clear – if you notice anything usual, submit a helpdesk ticket as always. We’re receiving reports from users this morning about the cluster being unresponsive or sluggish. We are investigating the issue and will have an update soon. Thanks!

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ACCRE research featured in PBS documentary “Neanderthal”; parts 1 and 2 online now

Oct. 11, 2018—Vanderbilt professor Tony Capra has been featured in “Neanderthal”, a two-part series on PBS that aired this month. His lab uses ACCRE extensively to explore the genetics of human evolution. Watch the first part of Neanderthal here (expires November 14). Watch the second part of Neanderthal here (expires November 21). Here is a clip from...

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[Resolved] /scratch and /data partially offline

Oct. 11, 2018—Update, 10/16/2018:  /scratch and /data are now 100% available again and we have successfully upgraded the cache in all of our GPFS storage appliances. Please open a helpdesk ticket with us if you have any questions or notice anything unusual. Update, 10/15/2018, 5pm: We are still working to get parts of /scratch and /data back...

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[Resolved] Cluster inaccessible

Oct. 1, 2018—Update, 2pm: The cluster is accessible again. Thank you for bearing with us and we sorted through these issues. We were able to successfully upgrade the cache on three of our six GPFS storage appliances. The third one is where we encountered issues. A hardware problem prevented us from booting the device cleanly until an...

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